Anyone know any information about this file? I've read that it's somehow related to malware in some cases but in other places I've found it to be relevant to Skype. I have noticed that when I launch Skype after deleting the file it automatically recreates itself. The exact same file is also located in C:\Users\All Users\ and recreates also when deleted/launching Skype.

Scanning comes back clean but is useless to scan the .dat since it's a bin for data, correct? And the checksums don't come up with any results.
Trying to open it in Notepad fails as well, seems to be a bunch of disfigured characters, likely due to some form of encrypting?

I don't think I'm infected, but am unsure. I have multiple layers of security and do regular scans. Nothing looks suspicious or anything of that nature. As for it being not there for you, I'm using the latest version of Skype and have had multiple friends try to find it by using the DOS commands

"cd C:\ProgramData\"
"dir /ah"
and it didn't output what I have.
The closest thing I've found for an answer was at the Skype forums but was by someone whom is Russian, stating the same things as I am. I've tried contacting the Skype support and they haven't responded to me in 4+ days. They say they will reply in 12 hours or less, so I don't know what's up.

That post is mine by the way.

May I also add, if you simply go to Google and type in "ezsidmv" it comes up with the suggestion "ezsidmv.day skype". So I'm not sure what to believe here.

That's why I suggested seeking help in any of those sites. A HijackThis log review by them will erase that doubt. Wilders no longer process HJT logs as per this Policy. If you haven't done so already, run Malwarebytes' Anti-Malware free version as a backup opinion.

That's another thing I forgot to mention, it's also being found in System32. I'm amazed that you found it... And for some reason I cannot log into my accounts after the session expires. Sorry for remaking so many.
So what are the file properties on yours Brian? Look the same as mine listed above?

Not sure if it will b0rk your computer but if you want you could try deleting it with Skype closed, and relaunching Skype and seeing if it recreates it.

I have an answer for you. I restored an image of a fresh WinXP install. The file wasn't present in System32. I installed Skype. The file wasn't present in System32. I restarted and the file was present in System32 and it had today's date.

I wonder why the other people I've spoken to don't have it at any of the locations though... Strange. Maybe it was new to the recent installer versions and wouldn't affect the OS through the "Update" button. Still puzzles me.

Well, I made sure to eliminate that using the
"cd C:\ProgramData" - Changes the directory to the programdata folder
"dir /ah" - lists files/folders in the directory, however the /ah enables hidden files to be shown

This didn't work for them. So it is strange. I wish Skype would give me some form of closure on this topic as they've only sent me one general email asking for the version of Skype I was using and haven't responded in four days or so. Five now, I think.

Hmmm... and all of these computers had Skype installed, but only some had the file?

Click to expand...

That is correct.

I booted into a Win7 I haven't used for ages. An old Skype was present (sorry, I didn't look at the version) but the file wasn't present. I installed the latest Skype and even before rebooting the file was now present in ProgramData.